Mouthguard



FIG. 1 is a side perspective view of a mouthguard;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is another front perspective view thereof;

FIG. 5 is a front perspective view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is a side view thereof;

FIG. 8 is another side view thereof;

FIG. 9 is a top view thereof; and,

FIG. 10 is another top view thereof. 

CLAIM The ornamental design for a mouthguard, as shown and described. 